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DEFERRED ACQUISITION COSTS, PRESENT VALUE OF FUTURE PROFITS AND SALES INDUCEMENTS - SALES INDUCEMENTS (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Fixed indexed annuities |  |
Movement in Deferred Sales Inducements [Roll Forward] |  |
Beginning of period | $ 170.1 | $ 128.1
Capitalizations | 28.1 | 31.2
Amortization expense | (12.3) | (9.9)
End of period | 185.9 | 149.4
Fixed interest annuities |  |
Movement in Deferred Sales Inducements [Roll Forward] |  |
Beginning of period | 6.5 | 5.1
Capitalizations | 0.9 | 1.1
Amortization expense | (0.5) | (0.5)
End of period | 6.9 | 5.7
Annuity |  |
Movement in Deferred Sales Inducements [Roll Forward] |  |
Beginning of period | 176.6 | 133.2
Capitalizations | 29.0 | 32.3
Amortization expense | (12.8) | (10.4)
End of period | $ 192.8 | $ 155.1

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